Washington (CNN) - The New Hampshire Republican hoping to keep an open Senate seat in GOP hands picked up the endorsement of another out of state conservative on Friday.

Republican Sen. Tom Coburn of Oklahoma announced his support for Kelly Ayotte, the former New Hampshire Attorney General who also has the backing of former Alaska Gov. Sarah Palin.

"I look forward to having Kelly Ayotte join us in the Senate next year to help defend the Constitution's limitations on federal power and to fight for the fiscal survival of our country," Coburn said in a statement. "She has the experience, the commitment and the integrity to be a strong force for reducing spending, protecting freedom and making government effective yet manageable."

Mississippi Gov. Haley Barbour says he won't decide about a presidential run until after the midterm elections.

Washington (CNN) - Haley Barbour, the chairman of the Republican Governors Association and one of the most powerful Republicans said to be considering a run for president, is making the case that his southern accent and lobbying career might make him exactly the kind of candidate who can mount a successful campaign against President Obama.

In an interview with Peter Robinson of the Hoover Institution, the current governor of Mississippi says he won't decide whether to run until after the November midterm elections.

But when asked if his southern accent might be a hindrance to a candidate running a national race dependent on support from the northeast and coasts, Barbour cited the examples of former Presidents Jimmy Carter and Bill Clinton.

Former President Bill Clinton will hit the campaign trail next week in Arkansas.

Washington (CNN) – Former President Bill Clinton heads back to his home state of Arkansas next week to campaign for two Democratic candidates.

Clinton is scheduled to appear at events for incumbent Democratic Sen. Blanche Lincoln and congressional candidate Chad Causey on September 8.

Clinton backed both candidates in the Democratic primary, with the former president repeatedly hitting the trail for Lincoln as she fought to survive a tight Democratic primary process against the more liberal Lieutenant Gov. Bill Halter.

Washington (CNN) – New Orleans Mayor Mitch Landrieu weighed in on the contentious race for Senate in Nevada on Wednesday, criticizing Republican candidate Sharron Angle for saying in 2005 that she would have voted against funding for Katrina relief efforts because the money was not well accounted for.

"I think that government needs to live within its means," Angle said in a 2005 radio interview. "I would like to go join my voice with Mike Pence and others who, when $62 billion came out to be spent on Katrina relief, he said, 'wait a minute, I'm voting no and the reason is because I want to know where it's going, what it's going to be spent on, and who's going to be spending it.' So I'd like to join my voice there."

The comments were reported Sunday by Jon Ralston of the Las Vegas Sun, and have led to a response from Landrieu, who said Angle "is simply too extreme and dangerous to serve in the United States Senate."

The CNN 100 takes a look at the top 100 House races, from now until Election Day.

Editor's Note: In the final 100 days before Election Day, CNN has been profiling one race at random each day from among the nation's top 100 House races, which we've dubbed "The CNN 100." Read the full list here . Today's featured district is:

(CNN) - Rep. Betty Sutton was once thought a shoo-in for reelection in Ohio's blue collar 13th District, but when Republican Tom Ganley said earlier this year that he would drop his Senate bid and instead run against Sutton, all bets were off for the incumbent.

That's because Ganley, a wealthy car dealership owner, brought a sizable campaign warchest to the race when he dropped into the 13th District race. Coupled with small business credentials, Ganley presents a sizable threat to Sutton.

Washington (CNN) - Republican Senate hopeful Joe Miller, who holds a razor thin advantage as Alaska prepares to tally absentee votes in the wake of Tuesday's primary, says he is now concerned the National Republican Senatorial Committee is "meddling" in the race.

"We are concerned, we've got, I think, some game play going on here with the National Republican Senatorial Committee meddling in our primary election," Miller said Thursday during an interview on Fox Business Network.

The NRSC dispatched Sean Cairncross, the committee's general counsel, to Alaska on Thursday at the request of incumbent Republican Sen. Lisa Murkowski, the Washington Post reported Thursday.

But the NRSC says that Miller will have the committee's support if he prevails.

"At the end of the day, it's the voters of Alaska who will have decided this race and the NRSC will wholeheartedly support whichever candidate is chosen as the Republican nominee. We have communicated that to both campaigns and we intend to keep this seat in Republican hands," NRSC communications director Brian Walsh said in an email to CNN.

With 100 percent of election night precincts now reporting, Miller holds a 1668 vote advantage over Murkowski, but absentee ballots, which a significant number of Alaskans use to vote, have yet to be counted.

If Republican incumbent Sen. Lisa Murkowski is defeated in the GOP primary, her only option is to run as a write-in candidate.

Washington (CNN) - Democrats are already moving to quickly define Alaska Republican and Senate hopeful Joe Miller as an extremist candidate, but a spokesman for the Democratic National Committee had trouble Wednesday naming his own party's candidate for the office.

DNC spokesman Brad Woodhouse, in an appearance on ABC's "Top Line" political webcast, found himself at a loss when asked by the show's host to name the Democratic Party candidate in the race.

"Well, our candidate in Alaska … his name ... his name is not Lisa Murkowski," Woodhouse said.

It was an embarrassing moment, and one that was seized on immediately by Republicans blasting emails to reporters. And a stumble that would be forgotten if the Democratic candidate – whose name is Scott McAdams – was able to gain traction in a race thought to be firmly in Republican hands.

"A lot of people are getting to know Scott McAdams today – me included – and if Miller winds up being the nominee and promotes stuff like unemployment benefits are unconstitutional – we'll like our chances there more and more," Woodhouse said in an email to CNN.

South Carolina Democratic Senate nominee Alvin Greene was escorted from an event on Saturday.

Washington (CNN) – Embattled Democratic Senate candidate Alvin Greene was escorted from a meeting of the Oconee County Democratic Party on Saturday after police received reports that he and a companion were causing a disturbance.

Greene had been invited to attend the group's routine breakfast meeting, but was disinvited after he was indicted by a grand jury on obscenity charges. But he showed up anyway, and according Seneca Police Chief John Covington, one of his staffers became angry and engaged in an argument with meeting attendees.

According to the police report filed after the incident, Greene's companion, Dottie Sue Maggart-Feldman, argued with several members of the breakfast party, but that the altercation did not turn violent.

Rep. Joe Sestak is picking up the endorsement of former Sen. Chuck Hagel.

Washington (CNN) – Rep. Joe Sestak, the Pennsylvania Democratic Senate nominee, is picking up an endorsement from an unlikely source: a former Republican senator from the state of Nebraska.

Chuck Hagel, a former two-term Republican senator, will announce his endorsement of Sestak on Tuesday, Sestak spokesman Jonathon Dworkin confirmed to CNN.

Hagel, who did not seek reelection in 2008 and was rumored to be a candidate for several top White House jobs after choosing not to seek the Republican presidential nomination, will announce his endorsement at two events scheduled for Tuesday in Philadelphia and Pittsburgh.

At Tuesday's events, Hagel is expected to "speak about Joe's independence and focus on doing what's right not for Wall Street or Washington special interests but for Pennsylvania's working families," the Sestak campaign said in a statement.

Washington (CNN) - Only one day of campaigning remains before Florida primary voters go to the polls, and with time running out a new poll reveals that massive numbers of voters remain undecided even after months of tough politicking.

Rep. Kendrick Meek holds a 39 percent to 29 percent lead over billionaire Jeff Greene in the Democratic Senate primary, according to a Quinnipiac University poll released Monday morning. But 28 percent of likely Democratic voters say they are undecided in this contest.

In the marquee Republican match-up, Attorney General Bill McCollum holds a 39 percent to 35 percent lead over health care executive Rick Scott in the Republican gubernatorial primary. In that race, 22 percent of GOP voters say they have yet to choose a candidate.